Clef Cards vs Sight Singing Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Clef Cards
This app provides an endless set of flashcards to help users learn to read music across various clefs. It tracks progress and allows customization of clef selection, with optional historical clefs available for purchase.
- Endless flashcard sets
- Treble, Alto, Tenor, Bass clef support
- Progress tracking
- Customizable clef selection
- Optional historical clefs
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Learning to read music can be daunting when faced with a new clef, but making a set of flashcards can help. That's where Clef Cards comes in. It's an endless set of flashcards in Treble, Alto, Tenor and Bass clef! Just tap on a note name, and the next one loads. Clef Cards tracks your progress and allows you to specify which of the four clefs to use. For a small fee, add six historically based clefs: Soprano Clef Mezzo-Soprano Clef Baritone (F) Clef Baritone (C) Clef French Violin Clef Sub Bass Clef
Sight Singing Pro
This app acts as a personal vocal coach to help you master reading music and singing on pitch. It provides real-time feedback on your singing accuracy and offers various training modes for ear training and sight singing.
- Real-time pitch analysis and feedback
- Record and playback for comparison
- Multiple training modes (Sight Singing, Ear Training)
- Customizable drills with note and key selection
- Support for various clefs and score difficulties
- Detailed performance reports and achievement tests
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Master sight singing with your personal vocal coach. Sight Singing Pro is designed to help you master the art of reading music and singing on pitch. Whether you are a music student preparing for your ABRSM graded exams, a choir member, or a passionate hobbyist, our app acts as a real-time tutor, listening to you sing and showing you exactly where you hit the right notes—and where you missed. "Revolutionary app to fully utilize iPhone's recording/playing functionality to enable solfege training. With the function to visually show how much my own singing is off, I can practice while adjusting subtle sound differences by myself." -- a 5-star review at App Store The app includes three dedicated training modes: • Sight Singing • Ear Training - Dictation • Ear Training - Singing 【 Key Features 】 • Analyze the pitch you sing for each note and receive instant feedback on its accuracy. • Record your song and play it back with the correct melody for comparison. • View detailed performance reports in the Report section. • Customize your training with the 'Drill' mode, where you can configure what kinds of notes will appear and transpose. • Choose from a variety of clefs, including treble, bass, alto, and tenor. • Select your preferred level of score difficulty, from Intro I, Intro II, Easy, Moderate, and Difficult. • Choose the type of notes, rests, time signatures, the number of bars, and the tempo. • Explore advanced musical elements like ties, dotted notes, triplets, and leaps. • Select a key from twelve major and twelve minor keys. • Display syllables in fixed-do, moveable-do, or letter name. • Practice scales. • Store and review music sheets you've tried for future reference. • Challenge yourself with Achievement Tests featuring over 2000+ highly selected musical sheets. • Master your grade's sight-singing tests with our new ABRSM courses. 【 How to Use 】 1. Press 'Tonic' to check the tonic of the music score. 2. Scroll through the score to get an overview of the entire song. 3. Press 'Start' and sing along with the score. 4. A green bar will appear when your pitch is correct and a red one when it's off. 5. Use the 'Play' button to listen to the song in the correct pitch. 【 Subscriptions 】 • Payment will be charged to your Apple ID account at the confirmation of purchase. • The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. • Your account will be charged for renewal within 24 hours prior to the end of the current period. • You can manage and cancel your subscriptions by going to your App Store account settings after purchase. • You will not be able to cancel the subscription once activated. 【 FAQ 】 Do you have any questions? Visit our FAQ page at https://sightsinging.app/faq for detailed instructions and troubleshooting tips. You also can reach us by email at support@sightsinging.app. • Terms & Conditions https://sightsinging.app/terms-and-conditions • Privacy Policy https://sightsinging.app/privacy-policy Start your sight singing journey today and unlock your musical potential with our app!
Screenshots
Verdict
The clearest difference is monetization model: Clef Cards at free with in-app purchases against Sight Singing Pro's subscription. Clef Cards also leads on iOS requirement (9.0 vs 17.6). Sight Singing Pro's advantage is update cadence (every 5 days vs every 6 months) and rating (4.8 vs 4.5). On price, review sentiment, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Clef Cards sells 1 one-off in-app purchase and Sight Singing Pro sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.
Sight Singing Pro holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Sight Singing Pro has 189 ratings behind it against 10, so its average is the more settled of the two. Written reviews split almost evenly too, at 88% and 88% positive.
Clef Cards ships an update every 6 months, Sight Singing Pro every 5 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Clef Cards | Sight Singing Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (10 ratings) | 4.8 (189 ratings) — better |
| Positive reviews | 87.5% of reviews | 87.5% of reviews |
| Number of ratings | 10 | 189 — better |
| Update frequency | Every 6 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 65 MB | 139 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Muszynski | Deeryard LLC |
Customer experience
Clef Cards
Sight Singing Pro
Bugs and requests
Clef Cards
Not enough reviews yet to summarise bugs or requests.
Sight Singing Pro
Reported bugs
5 issues- Microphone doesn't always hear correctly
- Pitch analysis broken, reports wrong octave
- Inconsistent note accuracy on specific notes
- App forcing repurchase after updates
- App unavailable in certain countries
Requested features
3 requests- On-screen piano keyboard for practice
- Easier octave adjustment or auto-detection
- More complex scores in free version
In-app purchases
Clef Cards
- Historic Clefs2 variants$0.99
Sight Singing Pro
- Premium Access - Monthly$8.991 Month
- Premium Access - Yearly$89.991 Year
- One-time Payment$259.99









